GGU-2D-SSFLOW: "Default depths" menu item

The default depths defined in this dialog box are assigned to all new FEM nodes defined using the "Mesh/Define nodes" menu item. The additional entry "Blanket top" appears in the dialog box for a "leaky aquifer".

If you edit the given value and leave the dialog box using "Done" the newly defined depths will be adopted as of this moment for newly defined nodes. If nodes are already defined, they can also be retroactively assigned z values using the "For all" button.